Chase die assembly



F. AUER CHASE DIE ASSEMBLY Dec. 14, 1948.

4 Sheets-Sheet 1 Filed June 22, 1946 m C Q:

FRfDfR/GK Alli-R Wu swa ATTORNEY Dec; 14, 1948. F. AUER 2,456,240

CHASE DIE ASSEMBLY Filed June 22, 1946 4 Sheets-Sheet 2 l' y I I Q I I FkfDfR/LA 1105/? FIG. I4 Ev Dec. 14, 1948..

Filed June 22,- 1946 F. AUER CHASE DIE ASSEMBLY FlGJO 4 Sheets-Sheet 3 INVENTOR FREDERICK AUER ATTORNEY Dec. 14, 1948. F. AUER CHASE DIE ASSEMBLY 4 Sheets-Sheet 4 Filed June 22, 1946 eLe e|e FIG.I2

R U m M R mm m I A m. Y B m M 2 5 t L 4 T: 5) 1; a w 5 i L 11 L W i Patented Dec. 14, 1948 CHASE DIE ASSEMBLY Frederick Auer, Teaneck, N. 1., assignor to Cham-' plain Company, Inc., Bloomfield, N. J a corporation of New York Application June 22, 1946, Serial No. 678,633

24 Claims.

example, milk containers made by the millions,

the furniture is made of metal. The chase die is ordinarily mounted on the upper platen or bolster of a press, and cooperates with a relatively thin fiat bottom assembly comprising a bottom plate beneath a cutting plate surmounted by scoring spacers or die plates, between which the scoring rules bend the material of the web. The cutting rules are sharpened and wide enough to go all the way through the material to the cutting plate.

After first setting up and testing the die, it is found that some cuts are clean and others not, and that some score lines are too deep and others too shallow. This requires an adjustment commonly called make-ready, and heretofore for this purpose, bits of paper were placed between the bottom plate and the cutting plate at points where the scoring or cutting is to be made deeper. For this reason the cutting plate was ordinarily fairly thin, and the bottom assembly was usually called a make-ready assembly. v

This trial-and-error procedure was often long drawn-out and tedious, and the nature of the adjustment made was such that a' whole area would be changed, rather than one particular cutting rule or scoring rule.

The primary object of the present invention is to generally improve chase dies, and to facilitate making ready.

A more particular object is to localize the adjustments to any one rule, instead of an area of the die. To this end the make-ready adjustments are made at the die itself, rather than at the bottom assembly, and in accordance with further features and objects of the invention, the die is mounted on the bolster with appropriate guide means, preferably including rollers and guide rails to facilitate sliding the die out of position and back again for the necessary adjustments of the rules. Appropriate locating means are also provided to insure return of the die to identical position after each adjustment.

To accomplish the foregoing general objects and other more specific objects which will hereinafter appear, my invention resides in the chase die elements, the guide and locating means for the same, and their relation one to the other, as

2 are heinafter more particularly described in the following specification. The specification is accompanied by drawings in which:

Fig. 1 is a horizontal view of a chase die, showing also the guide means, and taken substantially in the plane of the line l-l of Fig. 3;

Fig. 2 is an elevation showing the guide means in relation to the press bolster;

Fig. 3 is an elevation showing a part of the press with the die mounted therein;

Figs. 4 and 5 are explanatory of the operation of the guide means;

Fig. 6 is a plan view of a part of the die with the hold-down plate removed;

Fig. '7 is an elevation thereof;

Fig. 8 is a section through a cutting rule, t in the plane of the line 8-8 of Fig. 6;

Fig. 9 is a similar section showing the addition ofa shim to lower the rule;

' Fig. 10 is a section through a scoring rule, taken approximately in the plane of the line Ill-l0 of Fig. 6;

Fig. 11 is an exploded view showing the parts associated with one of the rules;

Fig. 12 is a plan view of a part of the bottom assembly;

Fig. 13 isan elevation thereof; and

Fig. 14 shows the blank being made by the particular die illustrated in Figs. 6 and 12.

Referring to the drawing, and more particken ularly to Fig. 14, the die in the present case is intended to make a milk container blank. This requires cutting on the lines shown as solid lines, and scoring on the dot-dash lines. When this blank is folded and cemented, it provides a, milk container of the type having a sloping or gabled top. The blanks are formed in a continuous web of stock, and the die is preferably made long enough to form two blanks at a time, because they interflt at the bottom edges I 2 and M in such a way as to conserve material.

Referring now to Fig. 3, the web (not shown) is passed between the upper platen or bolster l6 and the lower head l8. Usually the upper head It is movable and the lower head It is stationary. A chase die 20 is secured to bolster I6, and a bottom assembly 22 is mounted'on the bottom head l8.

Referring now to Figs. 6 and 7 of the drawing, the die comprises a chase frame 24 within which cutting and scoring rules 26, 28, 30, etc., are disposed, these rules being properly spaced and supported in vertical or edgewise position by furniture 32, 34, 36, 38, etc. Fig. 7 shows how the cutting rules are. sharpened, as for example at 48,

needed, and that the back-up strips are preferably loosely fitted together, and loosely received in the lands. The rules are disposed edgewise and therefore are themselves rigid, so that the refinement of interfitting the ends of the back-up strips as just described, is not essential, though desirable.

1 The backup strips are themselvessufficiently hold the frame against any possibility of spreading under pressure of the set screws 44. The furniture is slotted to loosely received the tie-rod 45,. so that the latter does not interfere with assembly of the furniture within the frame, and seating of the furniture when tightened together by the set screws.

The furniture and rules are supported at the mitred ends.

top by a so-called hold-down plate. -This has been removed in Fig. 6, but is shown at 46 in Fig. 1. It may be comparatively thin, and'is held by four screws at the corners as indicated at 48. There is no. appreciable. load.'other..-than@complate, for the. reason; that the plate. isxflush-xwith the top of the chase frame;.and; rests-directly "against the :bottom. face of the bolster of; the

press. isappliedfrom therrules .to the..hold-:down plate to the bolster of ethetrpress.

:As-so fardescribed, the 'die .would'be' conventional, but-referring. now t0:Figs; 8,-'91 '1O and 11,

. it willbe seenth'at the'rfurnitureror spacers 50 and 52 are provided with peripheral steps-*or lands 54 .(Fig. 11): within. which arback-upstitip 56 is received, thisza'back-up :zstrip preferably being thinner than thesdepth'rof :thellandszreceiving the i::.same;;Thus the pressure of the rulea5z8 isapplied to the back-up :stripvv and ini'tur-ntto the .holddown. plate 46.

To :lowera rule 5.8 for a deeper pression between the. faces of thewholdedown cut, it is merely necessary torsubstitnteanother 1 back-up strip havingislightlyzgreater. thickness, or even: more tconveniently; one 1' ori'more'r thin "ingl are acldedto theback upaxstrip 56,.- iIn this thick and stiff that the shims need not have the exact length or outline of the back-up strip. The shims are preferably rectangular in outline, being made of ordinary shim stock having a width approaching that of the back-up strips. The

. piecesrmay have a length approximately equal to the length of the back-up strips without the Such shims are indicated in Fig. 6 at 14 and 16.

Inasmuch as the chase die may have to he slid out several times for trial and error adjustment of the rules, I provide guide means to facilitate access to the top of the die. While notzessential; I prefer to-provide anti-friction. meansin the form of cooperating rollers and rails. In the present case, the rollers -are provided. at the sides .ofrthe die, and therails are-fixedlyrsecured to the Thus the: reaction :of the: cuttingv pressure bolster of the; press. In the-drawing, the rollers are indicated at .80 and run on-rails 82: The latter have verticalsupport and'spacerportions 84 which are secured directly to the'bolsterbymeans of bolts 86'. The parts 82 a-nd- 84 are -L-shaped in section, as is best indicated at-the left in Fig. 3.

To secure the die firmly in position on the bolster, I provide attaching means, here exemplified by mating ears and gibst- The ears are shown 12.11 90, and in the present casearemade-integrally with the chase frame, there-beingfour, ears at the four cornersof therframe asisbest-shown in-Figs; 1. and 6.: :The ears have slopingtouter zedges 9'2 best shown in:Figs..3 and-4,. and these mate with the sloping inner-edges of gibs 94 which are releasably secured to bolster -;l'6- by..means of shims 60 (exaggerated in thickness in thevdrawway the makeeready.adjustment:maysbeapplied .to any individual rule.

It will also be understood that in:cruderwforin, the lands 1:541 and lbaek-upxstrips 15.6 might be eliminated, and the shims :applieddirectlylto the rules, butthiswouldzhave they-disadvantage of tend to tilt the furniture. 'l-loweverytlie preferred arrangement employs .backmpl strips. anchshims,

screws 96. The verticalsupport portion: 8 ;v of the the forward gibs 94. This is-unnecessaryaat the rear gibs; because the entire, trackterminates at (-38,v as will be seenat Fig. 1, for the rollers-80 are then in their innermost-position... Theresis no need to extend the track furtherbecause the die provided at the end of the die .whichis pulled out of the press.

'It will be understood thatto perform the-makeready adjustment .the bolts 96 holding the gibs 94 the back-up. strips being .thickien'ou'ghv to provide Y I relatively rigidsupportover the full length of the -.-rule.

Fig. 9 is. like Fig. 11, but; shows the parts in assembled relation. Fig. :91 differs from Fig. 8 in showing theaddition'ofshim 60. torslightlyalower the rule 58x Fig. 10 is .alsectionzthroughtascoring rule, but otherwise"correspondsto Fig. 9.

Reverting-now to Eig.;-.6;:: it 'wi'll1:be::se'en.::.that the back-upltstrips preferably are soishaped at the intersections of .the*-.rules,ithatieachrule may be supported throughout its' l'ength; ..Thus,:;at a

simple rectangular intersection, thejfstrips are the specialcase; as indicated .at 66,68, 10. and I2.

Al; the

eral means.v

are released slightly, thus permitting the rollers r 801 to descend slightly .untilthey rest .on the rails 82, this change being indicated to an exaggerated l extent by the changefrom Fig.- 3 to Fig. 4 in the drawing. In Fig; 3 the gibs have-been-tig-h-tened and therollers 80 are lifted sli-ghtly'from.the rails. In Fig; 4 the .gib has been released and the roller rests .on the rail. .The die-ispthen pulled out of thexpress; the hold-down plate 46 1s removed;

someshims areadded or removed at the appropria-te rules; the hold-down .plate is replaced; the die is: slid backinto.position, and the gibs are again tightened. A

-. .In order toginsure perfect registration of the lzchase die with the bottom assembly, andwith the web,'it.is important that the die be restored to exact position. This is accomplished by sev- Stops are provided-to limit the insertion of the die, and for convenience, the stops are-preferably adjustable. I Referringto Fig 1,

it wiltbe zscenathattin ,thepresent; caseiathezstops are screws [02 received in threated blocks HM which are secured to the bolster of the press. The adjustment of-the screws is locked by means of appropriate lock nuts Hi6. This determines the in Fig. 1.

To fix the position of the die in transverse direction, that is, left and right, as viewed in Fig.

3, the gibs on one side, for example, the gibs 94 on the right side, are considered the home gibs,

and are invariably tightened first, thus bringing them all the way up against the bolster. The gibs on the other side are tightened last, and move the die to the right as far as permitted by the home gibs.

selves is accurately fixed by the use of dowel pins. 1

Moreover, the position of the gibs them- In passing, it may be mentioned that there is no chance of the die being twisted excessively to one side or the other as it is being rolled into position, for the sides of the chase frame come fairly close to the inside edges of the rails 82 (see Figs. 3 and 4). Thus the cars 90 slide smoothly over the released gibs as the die is pushed to the end stops I92, whereupon the gibs may be tightened, one side being tightened home first, as previously described.

The bottom assembly is shown in Figs. 12 and 13, and may be conventional It comprises a bottom plate i [2, a cutting plate 5M, and scoring spacers or die plates H6. The plates Hi5 are held in position by screws (see Fig, 12), and provide grooves or spaces therebetween in which the rules of the chase die are received. The

as sought to be defined in the following claims. For convenience, those claims dealing with the rail and roller arrangement specify that the rollers are on the die and the rails on the bolster, position of the die to the left or right, as viewed 5 but it will be understood by those skilled in the artthat if desired, rollers might be mounted on the bolster, and rails provided on the die.

I claim:

1. A chase die-comprising a chase frame, rules, furniture supporting said rules within said frame, a hold-down plate in back of said rules and furniture, and make-ready means for determining the height of said rules relative to one another within said chase frame and relative to said frame.

2. Achase die comprising a chase frame, rules, furniture supporting said rules within said frame, a hold-downplate in back of said rules and furniture, and make-ready means for determining the relative height of said rules, saidmake-ready means including shims disposed between the back of some of the rules and the hold-down plate. 3. "A chase die comprising a chase frame, rules,

furniture supporting said rules within said frame,

' said furniture having peripheral lands at the top,

hold-down plate, and back-up strips received in said lands between the backs of the rules and the hold-down plates, said back-up strips having a plates H6 are not needed for the cutting rules,

or. the like between the plates H2 and H4 at points requiring a deeper out. For the same reason, the handle shown at essential.

It is believed that the construction and operation of my improved chase die and guide means therefor a. well as the advantages thereof, will be apparent from the foregoing detailed description. The die is somewhat more complex in providing lands on the furniture and back-up H6 is no longer trips-- within .thelands, but this is compensated by the ease and accuracy of making-ready, for

each individual rule may be separately and accurately adjusted by" the use of thin shims disposed above that particular rule. Moreover,

access to the back-up strips is facilitated by the guide means, which preferably include anti-friction rollers such that the die is readily pulled out of position and replaced during the process of making-ready by trial and error. It is correctly located when replaced, but in addition, for

caution, the die may be provided with pilot pins,

and the bottom assembly with mating pilot holes 1 (not shown in the drawing).

. It will be apparent that while I have shownand described my invention in a preferred form,

changes, may be made in the structure disclosed without departing from the spirit of the invention.

thickness less than the depth of the lands receiving the same. I

5. A chase die comprising a chase frame, rules, furniture supporting said rules within said frame, said furniture having peripheral lands at the top, a hold-down plate, and back-up strips between the backsof the rules and the hold-down plates, said back-up strips being so relatively shaped at intersections of the rules that each rule may be supported throughout its length by a back-up strip.

6. A chase-die comprising a chase frame, rules, furniture supporting said rules within said frame, said furniture having peripheral lands at the top, a hold-down plate, back-up strips between the backs of the rules and the hold-down plates,

r make-ready shims disposed between one or more of the back-up strips and the hold-down plate in order to determine the relative height of the I rules.

7. A chase die comprising. a chase frame rules.

furniture supporting said rules within said frame, said furniture having peripheral lands at the top,

a hold-down plate, back-up strips between the backs of the rules and the hold-down plate, said back-up strips having a thickness less than the depth of the lands receiving the same, and being mitred at intersections of the rules in order that each rule may be supported throughout its length by a back-up strip, and make-ready shims disposed between one or more of the back-up strips and the hold-down plate in order to determine the relative height of the rules.

.*9.The combination. with ,a: press-bolster or platen and. :a :chase dieaincluding .make-ready I aplaten: and :aqchase die includingrmake-ready meansaccessiblairom the "back of the die, pf

nminoluding --ro-llers vat th'essideseof the, dic rails ,securedto the bols'ter on which rails said rollers may be run, and means for accurately locating the-position of thedie'relative to thefbolster when w the 'die is returned after'having =been-rrolled out of thebolster for; make-,readyl adjustment.

u. ,ll. The combination-with a press bolster or platen,v and a chase die including make-ready ameans accessiblefrom the back of the die, 9f means to-"facilitate making ready said means qw'gincluding rollers at the sides of the die, rails 1 secured to the bolster on whichrailssaid rollers 2 gibs releasably: secured to the bolster.

" 12.-T-he: combination-with a'press bolster o'r platen, and a chase die including make-ready .rr ecmeansaccessiblefrom the back of the die, of 1% 1 meansto facilitatez-making ready, said means mincluding; rollers at the sides of the die-rails secured to the bolster on which rails said rollers we. may be run, ears on the chase frame,.mating gibs i z releasably secured to the bolster, and adjustable stopsjfor locating the position of the die relative to the bolster when the die isreturned after hay;-

' ing been rolled out-of thebolsterfor:makerready ;..;-,:adjustment.

.113.:Inucombination,aw-press bolster or -platen, a chase die having--make-ready means-accessible rom theybackaof the die, and guide means ,to l ,;.faoilitate moving 'thevchasadieinto 'or out of the =bolsterformake ready adjustment,- said die coma :prising achaserirame, rules;furnituresupporting said rules within said frame, and. make-ready jiffiifihii'l'lSFdiSIJOSBd between one or more of the rules a 1 and. fthexhold-down plate in lordert-o adjust the relative heightof therules, said-guide means in- 1a eluding means at the-sides of the 'die: movable l lirelativerto means secured to the 'bolsterso that the-diermay zbe slid out from the bolster. in

, 142.911! combination,- a-press bolsteror platen, l chase die 1 having make-ready means accessible bolster for make-ready adjustment, said die-comprising a chase frame, rules, furniture supporting saideruleswwith-in said: frame, and make-ready shimsvdisposednbetween one or more-of the rules :yl: means for locating the position'of the dierelal -tivcito thebolster when the die 'is-returned'aftr having been slid out of the bolster iormake ready .1

j adjustment.

15. In combination, a press-"bolster"orwplaten,

a chase die havingimake-ready meanswaccessible a from thebackof the die-,-. and guidevmeans F130 facilitate moving the chase die into or out of the bolster for-make-ready adjustment, said' die, comprising'a chase frame, rules-,-furniture supporting said rules within saide frame; saidwfurn-iture-hav- 2 ing peripheral lands=at thetophaeihold-domm means-accessible from the backwof the die, of wmeans to facilitate:making-ready,- said means means to facilitate 'making: ready, said means v:may be run, ears on the chaseframe, and mating 1 oi'rom lT-iZJFbElCkUOf the die, and v.guidecmeans to w vimfacilitate moving therchase die. intoor out of the "J15 plate;'.-backeupgstripsabetween thesbanks oi the "rules and the hold-:downc plates; saidv rback-up .strips having a thickness less: than ithezdepth of the :lands receiving thesame, and makevready '5 shims disposed between one or moreof the backup strips and the hold-down plate im order to cletermine the relative height of the vIllIBS, said xguide means'including means at the sides of the die movable relative to meansseeureditd the 10 bolstersothat the'diemay be slid outrinom the bolster.

16. In=combination,- a press bolster .or platen, a chase die having make-ready means accessible .-,'.from the back of the die, and-guide means to facilitate moving the chase'die intoor outwof the .bolsterfor makeereadyadjustment; said die comprising a chase: frame, rules,-furniture supporting SaldyILlleS withinxsaid frame; said furniture havperipheral land-s at the top;s;.a: hold-1down plate, backaup stripsibetween thebankswot the l: rules and the hold-down plates,-: said: back-up stripshavinga-thickness leg-than thecdepth of thelandsfreceiving the same; and makenready -;shimsdispcsedbetween one or more 'of thexbackpupf strips and the hold-down= plate in order to :;determine the relativeheightpf ther rulesfisaid guide means including means at the'sideszof the die-movable: relative a-to n'ieans"secured"to the 1- ,rlbolster so that the dle-may be slid outiromthe bolster, and means for locating the ppsitioniof the -clie relative to the bolster when the die is returned -after-having been 'slid-put-of the'bolster'ior makeready adjustment.

17,111 combination,- apress bolster onplaten, a

phase die having ;makee'readyumeans accessible :from the-back ofthe die, and guide ineansztoitacil- 1 j itate moving the chasedie into or out of the b o]- ster iormakez-ready adjustment; said diezcomprising a-chaseframe, rules; furniture supporting said "m rules within said": frame, andmake 'ready shims mlwclisposed between one ormoreof the rules and the i hold-clown plate-in order to determine therelative height of thewrules, said guide means including brollers at the sides of the die and railssecured l-lz'iqto the bolster-on which rails said rollers may be 18. 111 combination, a pressflbol-ster or platen, :a chase die having make-ready means accessible .--f1'0m the back ofthe die, and guide means to fiilmfacilitate moving ithe'chase die. into or out'of the bolster for make-ready adjustment, said'die com- :prising a chase framaprules, furniture supporting l-saidmrulesi-within said frame; and make-ready shim-s disposed'between one or more of the rules and thelhold down plate'in order to determine thelrelativerheightpf the rules, said guide means including rollers at the sidesof the die and rails secured rto Ithe bolster on which rails-said rollers maywbe run; and means for locating the position 01, of thedierelative to the bolster when the die is 7 3 returned after having been rolled out of the bolsters'for make-ready adjustment,

:19: In c'ombination; a press bolster or platen, a --;chas e die havingg-make-ready' means accessible 16 from thesback'of the die, and guide means to nfacil-ita-te-moving the'chase die into or out of the bolster for make-readyadjustment, said die comprising a chase frame-,rules, furniture supporting said-rules within said frame, said furniture hav- 1'70 inglp'eri'pheral' lands at the top, a hold-down plate,

back-up strips betWeen the-backs of the rules and the hold-doxi nsplates; said back-up strips having wsa thickness less than the depth of the'lands re- *ccivingthe, samegan'd make-ready shims disposed 125. tbetweenone-:or more of the back-up strips and if l the hold-down plate in order to determine the relative height of the rules, said guide mean-s including rollers at the sides of the die and rails secured to the bolster on which rails said rollers may be run.

20. In combination, a press bolster or platen, a chase die having make-ready means accessible from the back of the die, and guide means to facilitate moving the chase die into or out of the bolster for make-ready adjustment, said die comprising a chase frame, rules, furniture supporting said rules within said frame, said furniture having peripheral lands at the top, a hold-down plate, back-up strips between the backs of the rules and the hold-down plates, said back-up strips having a thickness less than the depth of the lands receiving the same, and make-ready shims disposed between one or more of the backup strips and the hold-down plate in order to determine the relative height of the rules, said guide means including rollers at the sides of the die and rails secured to the bolster on which rails said rollers may be run, and means for locating the position of the die relative to the bolster when the die is returned after having been rolled out of the bolster for make-ready adjustment.

21. In combination, a press bolster or platen, a chase die having make-ready means accessible from the back of the die, and guide means to facilitate moving the chase die into or out of the bolster for make-ready adjustment, said die comprising a chase frame, rules, furniture supporting said rules within said frame, said furniture having peripheral lands at the top, a hold-down plate, back-up strips between the backs of the rules and the hold-down plate, said back-up strips having a thickness less than the depth of the lands receiving the same, and make-ready shims disposed between one or more of the backup strips and the hold-down plate in order to determine the relative height of the rules, said guide means including ears having sloping outer edges on the chase frame, and mating gibs releasably secured to the bolster.

22. In combination, a press bolster or platen, a chase die having make-ready means accessible from the back of the die, and guide means to facilitate moving the chase die into or out of the bolster for make-ready adjustment, said die comprising a chase frame, rules, furniture supporting said rules within said frame, said furniture having peripheral lands at the top, a holddown plate, back-up strips between the backs of the rules and the hold-down plate, said back-up strips having a thickness less than the depth of the lands receiving the same, and make-ready shims disposed between one or more of the back- .up strips and the hold-down plate in order to determine the relative height of the rules, said guide means including rollers at the sides of the die, rails secured to the bolster on which rails said rollers may be run, ears on the chase frame, and mating gibs releasably secured to the bolster.

23. In combination, a press bolster or platen, a chase die having make-ready means accessible from the back of the die, and guide means to facilitate moving the chase die into or out of the bolster for make-ready adjustment, said die comprising a chase frame, rules, furniture supporting said rules within said frame, said furniture having peripheral lands at the top, a hold-down plate, back-up strips between the backs of the rules and the hold-down plate, said back-up strips having a thickness less than the depth of the lands receiving the same, and so shaped at intersections of the rules that each rule may be supported throughout its length by a back-up strip, and make-ready shims disposed between one or more of the back-up strips and the holddown plate in order to determine the relative height of the rules, said guide means including rollers at the sides of the die, rails secured to the bolster on which rails said rollers may be run, ears on the chase frame, and mating gibs releasably secured to the bolster.

24. In combination, a press bolster or platen, a chase die having make-ready means accessible from the back of the die, and guide means to facilitate moving the chase die into or out of the bolster for make-ready adjustment, said die comprising a chase frame, rules, furniture supporting said rules within said frame, said furniture having peripheral lands at the top, a hold-down plate, back-up strips between the backs of the rules and the hold-down plate, said back-up strips having a thickness less than the depth of the lands receiving the same, and being so shaped at intersections of the rules that each rule may be supported throughout its length by a back-up strip, and make-ready shims disposed between one or more of the back-up strips and the hold-down plate in order to determine the relative height of the rules, said guide means including rollers at the sides of the die, rails secured to the bolster on which rails said rollers may be run, ears on the chase frame, gibs releasably secured to the bolster, and adjustable stops for locating the position of the die relative to the bolster when the die is returned after having been rolled out of the bolster for make-ready adjustment,

FREDERICK AUER.

REFERENCES CITED UNITED STATES PATENTS Name Date Herrmann Dec. 12, 1939 Number 

